FIles

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.Properties;
public class Demo {
    public static void main(String[] args) throws IOException {
        Properties properties = System.getProperties();
        Object o = properties.get("user.home");
        File file;
        file = new File(pathname: "text1.txt")
        String theWords = "can";
        BufferedReader bufferedReader = new BufferedReader(new FileReader(file));
        String line;
        while((line = bufferedReader.readLine()) != null){
            if(line.contains(theWords)){
                System.out.println("This line contains " + theWords);
                String[] s = line.split( regex: "[\\s.!]+");
                int counter = 0;
                for(int i = 0; i < s.length; i++){
                    if(s[i].equals(theWords)){
                        counter++;
                    }
                }
                if(counter != 0){
                    System.out.println("The word " + theWords + " is found " + counter + " times.");
                }
            }
        }
    }
}